Abstract: A vehicle ignition interlock device comprises a vehicle ignition locking circuit which relies upon Bluetooth® pairing with a matching cellular phone to enable the ignition. The device is housed in a plastic enclosure having inside a Bluetooth® connection module and a relay that are interconnected to wiring. External wiring then connects the device to vehicle power, ignition interlock, and a valet switch. A valet switch allows the device to be overridden. During initial installation or setup, the device is paired with authorized cellular phones. During use, the owner approaches the vehicle whereupon the device automatically pairs with the phone and enables the ignition. Should the phone not be present, the vehicle will not start.